Preliminary Ratings: Saturday 04/18/15
Preliminary L+SD Network Averages:
| Total viewers | A18-49 | A25-54 | |
| ABC | 4.6 million | 0.8 | 1.1 |
| CBS | 4.8 million | 0.6 | 1.0 |
| CW | 0.0 million | 0.0 | 0.0 |
| FOX | 2.4 million | 0.6 | 1.0 |
| NBC | 2.4 million | 0.9 | 1.0 |
| Time | Net | Program | Viewers* | A18-49 | A25-54 |
| 8:00 | ABC | 20/20 | 4.30 | 0.7 | 1.0 |
| 9:00 | ABC | 20/20 | 5.80 | 1.0 | 1.5 |
| 10:00 | ABC | Castle [R] | 3.60 | 0.6 | 0.9 |
| 8:00 | CBS | CSI [R] | 3.60 | 0.4 | 0.7 |
| 9:00 | CBS | NCIS: LA [R] | 4.40 | 0.5 | 0.8 |
| 10:00 | CBS | 48 Hours | 6.30 | 0.9 | 1.4 |
| 8:00 | FOX | UFC on FOX | 2.40 | 1.0 | 1.0 |
| 8:00 | NBC | NHL Playoffs | 2.40 | 0.9 | 1.0 |
* - in millions
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